发明授权
- 专利标题： VERFAHREN UND VORRICHTUNG ZUR KONTINUIERLICHEN POLYKONDENSATION VON POLYESTERMATERIAL IN FESTER PHASE
- 专利标题（英）： Method and device for the continuous polycondensation of polyester material in the solid phase
- 专利标题（中）： 方法和设备用于固相缩聚连续聚酯材料
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申请号： EP01905567.2申请日： 2001-02-26
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公开(公告)号： EP1373360B1公开(公告)日： 2008-10-15
- 发明人: BORER, Camille , MÜLLER, Martin , CULBERT, Brent-Allen
- 申请人： Bühler AG
- 申请人地址： Patentabteilung 9240 Uzwil CH
- 专利权人： Bühler AG
- 当前专利权人： Bühler AG
- 当前专利权人地址： Patentabteilung 9240 Uzwil CH
- 代理机构： Frommhold, Joachim
- 国际公布： WO2002068498 20020906
- 主分类号： C08G63/80
- IPC分类号： C08G63/80 ; C08G63/88 ; C08F6/26
摘要：
The invention relates to a method and device for the continuous polycondensation of polyester material in the solid phase, in particular in the form of partially crystalline granulate. The aim of the invention is to achieve a high product throughput on recrystallising and recondensation of polyester material with a low initial IV. Said aim is achieved, whereby on recrystallisation, a low residence time of 1-10 minutes is achieved, by means of a rapid heating of a thin product layer, followed by an SSP treatment.
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